In December 1994, Islamic terrorists hijacked plane in Algeria and flew it to Marseilles, France. They wanted to top the fuel tanks off and then fly to Paris.
The speculation was that they wanted to crash it into a Parisian landmark.
Their plot failed when French commandos stormed the plane and killed them.
You can read about it here GIGN at Marseilles Airport
The US knew about plans, (Project Bojinka), to hijack planes and crash them into buildings since 1995. You can read about Project Bojinka hereCIA, FBI Knew Since 1995 About Possible Hijack Scheme